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Poster (Scientific congresses and symposiums)
X-ray emission from magnetic massive stars
Nazé, Yaël; Petit, V.; Rindbrand, M. et al.
2014The X-ray Universe 2014
 

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Abstract :
[en] Magnetically confined winds of early-type stars are expected to be sources of bright and hard X-rays. In an attempt to clarify the systematics of the observed X-ray properties, we have analyzed a large series of Chandra and XMM observations, corresponding to over 100 exposures of 60% of the known magnetic massive stars listed recently by Petit et al. (2013). We notably show that the X-ray luminosity is strongly correlated with mass-loss rate, in agreement with predictions of magnetically confined wind models. We also investigated the behavior of other X-ray properties (plasma temperature, absorption, variability), yielding additional constraints on models. This work not only advances our knowledge of the X-ray emission of massive stars, but also suggests new observational and theoretical avenues to further explore magnetically confined winds.
Disciplines :
Space science, astronomy & astrophysics
Author, co-author :
Nazé, Yaël  ;  Université de Liège - ULiège > Groupe d'astrophysique des hautes énergies (GAPHE)
Petit, V.
Rindbrand, M.
Cohen, D.
Owocki, S.
ud-Doula, A.
Wade, G.
Rauw, Grégor  ;  Université de Liège - ULiège > Groupe d'astrophysique des hautes énergies (GAPHE)
Language :
English
Title :
X-ray emission from magnetic massive stars
Publication date :
01 July 2014
Event name :
The X-ray Universe 2014
Event organizer :
ESA
Event date :
16th - 19th June 2014
Audience :
International
Available on ORBi :
since 19 August 2014

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